Calculating Distance Traveled During Acceleration

[Anon1456]

Homework Statement

A net force of 6.6 N east acts on a 9.0 kg object. If this object accelerates uniformly from rest to a velocity of 3.0 m/s east,

How far did the object travel while accelerating?

Homework Equations

F=ma
vf^2 = vi^2 + 2ad

The Attempt at a Solution

F=ma

a= f/m

a=6.6/9

a= 0.73333333333

vf^2 = vi^2 + 2ad

3 = 0 + 2(.733333)(d)

3= 1.467d

3/1.467 = about 2m
But the answer key says 6.1 m west. What did I do wrong and why is it west?

 

[QuantumQuest]

Just a small glitch in math... you forgot to raise vf to the square. For direction just follow the path.

 

[CWatters]

It starts from rest. The force and velocity are both to the east. How can it move to the west?

But anyway the question only asks "How far did the object travel while accelerating?" so the direction isn't required?